Butch: You okay?
Marsellus: Naw man. I'm pretty fuckin' far from okay.
Butch: What now?
Marsellus: What now? Let me tell you what now. I'ma call a coupla hard, pipe-hittin' *******, who'll go to work on the homes here with a pair of pliers and a blow torch. You hear me talkin', hillbilly boy? I ain't through with you by a damn sight. I'ma get medieval on your ass.

Jules: What does Marcellus Wallace look like?
Brett: What?
Jules: What country you from?
Brett: What?
Jules: What ain't no country I ever heard of! They speak English in What?
Brett: What?
Jules: ENGLISH, MOTHERFUCKER! DO-YOU-SPEAK-IT?
Brett: Yes!
Jules: Then you know what I'm saying!
Brett: Yes!
Jules: Describe what Marcellus Wallace looks like!
Brett: What, I-?
Jules: [pointing his gun] Say what again. SAY WHAT AGAIN. I dare you, I double dare you, motherfucker. Say what one more goddamn time.
Brett: He's b-b-black...
Jules: Go on.
Brett: He's bald...
Jules: Does he look like a bitch?
Brett: What?
[Jules shoots Brett in shoulder]
Jules: DOES HE LOOK LIKE A BITCH?
Brett: No!
Jules: Then why you try to fuck him like a bitch, Brett?
Brett: I didn't.
Jules: Yes you did. Yes you did, Brett. You tried to fuck him. And Marcellus Wallace don't like to be fucked by anybody, except Mrs. Wallace.

Mia: Don't you hate that?
Vincent: What?
Mia: Uncomfortable silences. Why do we feel it's necessary to yak about bullshit in order to be comfortable?
Vincent: I don't know. That's a good question.
Mia: That's when you know you've found somebody special. When you can just shut the fuck up for a minute and comfortably enjoy the silence.

I always loved the scene where Vincent is talking to himself in the mirror, right before Mia ODs. "You're gonna go out there, you're going to say 'I've had a very lovely evening'. Walk out the door, get in the car, go home, jerk off and thats all you're gonna do."